Sounds like it to me, the data within the DB wont be utf therefore its not going to make a difference if you send 'utf8' headers.

You will have to change the DB encoding, a small article i found on the matter (assuming you use mysql)
http://www.khelll.com/blog/mysql/cha...latin-to-utf8/

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mysql> SELECT * FROM `users` WHERE `users`.`clue` > 0;
Empty set (0.00 sec)